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Thread: bathrooms and fixed appliances

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    bathrooms and fixed appliances

    what are the regulations with regards to a mirror with lights in a bathroom in lets say zone 2...100 mm away fron the shower without a door.

    if you have an extractor fan directly above your shower which regulations would you take note of...if the extractor is connected to the light fitting and is above 2.5 metres from ther shower basin...what is the zone just above the shower and what if it is extracting the steam?

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    even better still...what about a fixed appliance mounted at 2.6 m above the shower basin if the shower rose is 2.1 metres above the shower basin? which regulation to use?

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    if you have an extractor fan directly above your shower which regulations would you take note of...if the extractor is connected to the light fitting and is above 2.5 metres from ther shower basin...what is the zone just above the shower and what if it is extracting the steam?
    i wouldnt worry about the fan as the motor is in the ceiling area and the housing is plastic.if its extracting steam ,its not going to extend the zone,as its not as if the steam is flammable. if its connected to the light then the light switch should be double pole.
    Last edited by Dave A; 17-Jun-11 at 05:25 AM. Reason: format help

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    Quote Originally Posted by bergie View Post
    i wouldnt worry about the fan as the motor is in the ceiling area and the housing is plastic.if its extracting steam ,its not going to extend the zone,as its not as if the steam is flammable. if its connected to the light then the light switch should be double pole.
    or on earth leakage

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    All bathroom appliances including mirror lights should be on earth leakage.
    It's allso regulation to have ceiling fans on earth leakage.

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    Quote Originally Posted by TECHNICIAN 810 View Post
    All bathroom appliances including mirror lights should be on earth leakage.
    It's allso regulation to have ceiling fans on earth leakage.
    in which zone?

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    Gold Member Sparks's Avatar
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    Table 7.1 ― Conditions under which electrical equipment
    may be installed in a bathroom
    1 2 3 4
    Conditions that apply in
    Electrical equipment Zone 1 Zone 2 Zone 3
    Distribution and control X X Normal provisions of this
    part of SANS 10142
    Bell push B1 and C1 B1 and C1 Normal provisions of this
    part of SANS 10142
    Socket-outlet X C2 Normal provisions of this
    part of SANS 10142
    Wall switch X X Normal provisions of this
    part of SANS 10142
    Pull switch Normal provisions of this part of SANS 10142
    Distribution boards X X X
    Fixed appliances
    (including luminaires)
    (A and B1)
    or
    (B2)
    (A and B1)
    or
    (B2)
    Normal provisions of this
    part of SANS 10142
    The symbols used in this table are the following:
    A denotes that earth leakage protection shall be provided;
    B1 denotes that the equipment shall be so enclosed in insulating material that it is not
    possible to touch current-carrying parts with the standard test finger;
    B2 denotes that class II appliances shall be used;
    C1 denotes that the equipment shall be supplied from a safety supply with a secondary
    voltage not exceeding 25 V;
    C2 denotes that the equipment shall be supplied from a safety supply that has a
    maximum rating of 50 VA. Shaver supply units shall comply with SANS 61558-2-5/
    IEC 61558-2-5 (SABS IEC 61558-2-5).
    X denotes that the equipment shall not be installed.
    Amdt 1

    7.1.4.3.1 In zones 0, 1 and 2, no switchgear and accessories shall be
    installed except that emergency push buttons, which operate at a safety
    extra low voltage at nominal voltage not exceeding 12 V, are permitted in
    zones 1 and 2.

    Zone 1 is limited by
    a) the vertical plane circumscribing the outer edge or 0,20 m from the
    inner edge (where the ledge is too wide) of the bathtub, shower basin,
    or for a shower without a basin, by the vertical plane 0,60 m from the
    shower rose,

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    Gold Member Sparks's Avatar
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    In other words, neither the fan nor the lights are acceptable.
    Maybe Dave can get the table to display correctly.
    Pasting is a whole lot faster than I can type.

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    zone 1-2 only extend to 2.5 m which means at 2.6 m it is out of the zone 1 and 2...zone 3 rules apply.

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    Gold Member Sparks's Avatar
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    Almost but not quite, it extends to "at least 2500mm" and then must be read with "600mm above the shower rose".

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